xti streaming

[wxWidgets.git] / include / wx / mstream.h

diff --git a/include/wx/mstream.h b/include/wx/mstream.h
index 83ae0ba3b5f844554270c6d7b6ed4975a971defa..fca461b5dc3910a5f4285832aa2c06cdb4b5ee14 100644 (file)
--- a/include/wx/mstream.h
+++ b/include/wx/mstream.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        mstream.h
+// Name:        wx/mstream.h
 // Purpose:     Memory stream classes
 // Author:      Guilhem Lavaux
 // Modified by:
@@ -8,29 +8,66 @@
 // Copyright:   (c) Guilhem Lavaux
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
+
 #ifndef _WX_WXMMSTREAM_H__
 #define _WX_WXMMSTREAM_H__
 
-#include <wx/stream.h>
+#include "wx/stream.h"
 
 #if wxUSE_STREAMS
 
-class wxMemoryInputStream: public wxInputStream {
- private:
-  size_t m_length;
-  
- public:
-  wxMemoryInputStream(const char *data, size_t length);
-  virtual ~wxMemoryInputStream();
-  virtual size_t StreamSize() const { return m_length; }
+class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
+{
+public:
+    wxMemoryInputStream(const void *data, size_t length);
+    virtual ~wxMemoryInputStream();
+    virtual size_t GetSize() const { return m_length; }
+    virtual bool Eof() const;
+
+    char Peek();
+
+    wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
+
+    // deprecated, compatibility only
+    wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
+
+protected:
+    wxStreamBuffer *m_i_streambuf;
+
+    size_t OnSysRead(void *buffer, size_t nbytes);
+    off_t OnSysSeek(off_t pos, wxSeekMode mode);
+    off_t OnSysTell() const;
+
+private:
+    size_t m_length;
 
-  char Peek();
+    DECLARE_NO_COPY_CLASS(wxMemoryInputStream)
 };
 
-class wxMemoryOutputStream:  public wxOutputStream {
- public:
-  wxMemoryOutputStream(char *data = NULL, size_t length = 0);
-  virtual ~wxMemoryOutputStream();
+class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
+{
+public:
+    // if data is !NULL it must be allocated with malloc()
+    wxMemoryOutputStream(void *data = NULL, size_t length = 0);
+    virtual ~wxMemoryOutputStream();
+    virtual size_t GetSize() const { return m_o_streambuf->GetLastAccess(); }
+
+    size_t CopyTo(void *buffer, size_t len) const;
+
+    wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
+
+    // deprecated, compatibility only
+    wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
+
+protected:
+    wxStreamBuffer *m_o_streambuf;
+
+protected:
+    size_t OnSysWrite(const void *buffer, size_t nbytes);
+    off_t OnSysSeek(off_t pos, wxSeekMode mode);
+    off_t OnSysTell() const;
+
+    DECLARE_NO_COPY_CLASS(wxMemoryOutputStream)
 };
 
 #endif